Higher November 2019 Paper 3 Q19
19 Here is a cuboid.
DH = 8 cm
DB = 13 cm
(a) Work out the size of angle DBH. [2 marks]
Answer in degrees
(b) Using your answer to part (a), work out the size of angle ECG. [1 mark]
Answer in degrees
| Answer | Mark | Comments |
|---|---|---|
| tan DBH \(= \dfrac{8}{13}\) | M1 | oe \(\tan^{-1}\dfrac{8}{13}\) |
| 31.6… | A1 |
Additional guidance
| 31.6… in working, 32 on answer line – correct rounding | M1A1 |
| 31.6… in working, 31 on answer line – incorrect rounding | M1A0 |
| \(\tan\dfrac{8}{13}\) or \(\tan = \dfrac{8}{13}\) | M0A0 |
| Answer | Mark | Comments |
|---|---|---|
| 58.39… or 58.4 | B1ft | ft \(90 -\) their 31.6… |
Additional guidance
Correct or follow through